Updates build to use SHA256 hash when signing files
diff --git a/Tools/msi/msi.py b/Tools/msi/msi.py
index 219c0ed..a56e40a 100644
--- a/Tools/msi/msi.py
+++ b/Tools/msi/msi.py
@@ -1436,6 +1436,7 @@
 if certname:
     os.system('signtool sign /n "%s" '
       '/t http://timestamp.verisign.com/scripts/timestamp.dll '
+      '/fd SHA256 '
       '/d "Python %s" '
       '%s' % (certname, full_current_version, msiname))